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1,029
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Media Type
1,027
texts
1
images
1
movies
Availability
1,028
Always Available
1
Available to Borrow
Year
4
1920
4
1906
4
1904
4
1899
7
1898
10
1897
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Topics & Subjects
854
patent office
838
patent
787
scientific american
723
scientific
673
steam
462
claim
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Collection
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Creator
138
united states. patent office
12
defense technical information center
2
hopkins, james love, 1868-1931
2
united states dept . of the interior , united states
2
united states. patent office. [from old catalog]
2
william henry browne
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Language
1,028
English
1
Handwritten English
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